Combined lock and latch for doors



oct, 20, 1925. 1,557,582

w. F. HARRINGTON COMB INED LOCK AND LATCH FOR DOORS I Filed Dec. 29.1925 INVENTOR..

w v 'ATT NEY;

atented ct. 20, I925.

- STTES P A T E WILLIAM F. HARRINGTON, OF TO'LEDQUIIIO.

COMBINED LOCK AND LATCH FOR'DOORS.

Application filed December 29, 1923. Serial No. 683,282.

To all whom it may concern Be it known that I, WILLIAM F. I-IAR-RINGTON, a citizen of the United States, residing at Toledo, in thecounty of Lucas and State of Ohio, have invented certain new and usefulImprovements in Combined Locks and Latches for Doors, of which I declarethe following to be a full, clear, and exact description.

This invention relates to combined locks and latches for doors,particularly vehicle doors, and embodies improvements upon the structureset forth in my co-pending application, Serial Number 617,437, filedFebruary 7th, 1923.

One object of the invention is the provision of means adapted to beoperated from inside the door for preventing the actuation of the latchbolt, by preventing the turning of the outside door handle.

Another object is the location of the aforesaid means upon theoscillatable rod used for actuation of the latch bolt from the inside ofthe door, thus avoiding the cutting of the upholstery, and removing thesaid means to a more accessible position.

Still another object isthe provision of automatically operating meansfor releasably holding the aforesaid means in both its operative andinoperative positions.

Other objects, and objects relating to details of construction andeconomies of manufacture, will appear as I proceed with the descriptionof that embodiment of the invention which, for the purposes of thepresent application, I have illustrated in the accompanying drawings, inwhich:

Figure I is a side elevation of a combined latch and lock for vehicledoors, showing the side of the lock which faces the interior of thevehicle.

Fig. II is a vertical, sectional, detail view taken substantially on theline IIII, Fig. I.

Fig. III is a horizontal, sectional, detail View taken substantially onthe line III" III, Fig. I. r

Fig. IV is a horizontal, sectional, view taken on the line IV-IV, Fig.I, showing a spring washer which may be employed.

Fig. V is an elevational View of the sleeve showingthe spiral slottherein.

Fig. VI is a view taken substantially at' right aiigles to Fig. V. andshowing the upper portion of the sleeve and its operating disc insection, and

movement longitudinally of the trou Fig. VII is a central, vertical,sectional viewof the upper end of the oscillatable rod with the sleevein place thereon.

Similar reference characters'refer to like parts throughout the views.

In the drawings, 10 represents the maincasing plate or base plate. Atone vertical edge it is bent at a suitable angle to form the front orface plate 11, in which is formed an opening in order that thelatch'bolt 12 may protrude therethrough. The latter slides upon thesurface of the plate 10, being guided by the walls of the opening in theface plate 11 and between lips 13 struck up out of the base plate 10. Atthe rear end of the bolt, there is an offset portion 14, which slides inupper and lower tracks 15. These tracks are bent up out of a smallercasing plate 16, which is fastened to the set into slots in the faceplate 11, and screws 18 extending through spacers (not shown), andthreaded into holes in the base platelO.

19 is a roll-back adapted Lobe actuated til] ' plate 10 bysuitablemeans, as by tongues 17 7 by an outside door knob (not shown), and

arranged to engage one of two wings 20 which are integral with the latchbolt 12 and extend therefrom in opposite directions between the twoplates. Symmetrically arranged with respect to roll-back 19, but 35 uponthe opposite side of the latch bolt, is a locking dog 21, intended to beoperated by a key from, the outsideof the door and arranged to engagebehind a shoulder on the latch bolt to prevent its being retracted.

The journals for the roll-back 19, and looking dog 21, are of thesamesize and may be interchanged for right and left hand opening doors. Thelocking dog 21 may be omitted in some cases, and in fact, it is'used Wordinarily upon one door only of each vehicle.

The latch bolt 12 is normally urged toward latching position by a coilspring 22, the free end of the spring bearing upon a rounded surface 23ofthe bolt.

A groove or trough 24 is formed in the plate 10, open towards the plate16, and

' running at right angles to the bolt 12. This trough extends entirelythrough the plate 10 from one edge to the other, as appears more indetail in my co-pending application above referred to. In the trough arelaid a pair of bushings 25, which are held a ainst projections upon thecover plate 16, as is also clearly shown in my previous ap lication.Within these bushings is journa ed a rod 26 carrying intermediate itslength a crank arm 27, which extends into an elongated openin in theoffset'portion 14 of the latch bolt and has a bearing against the boltat the rear of the openin whereby rotation of the rod 26 retracts t ebolt against the action of spring 22.

A small spring washer 28 is slipped over the rod26 into contact with the'up r one of the two bushings 25. This was or has two cars 29 which restagainst the plate'lO at the sides of the groove or trough 24, and thusprevent the rotation of the washer. Above the washer 28 and resting uponthe upper surface of the latter, is a sleeve 30' having at its upperend, some means for turning the same; such for instance, as a disc 31with a downturned knurled edge. In

the lower end'of the sleeve there are two diametrically arranged notches32, which-co operate with" projections 33 on the. washer. A handle 34having a squared opening therein, is mounted upon the s'quaredupper endof the rod 26, bein held on with a screw 35, as shown in Fig. tween thehandle 34 and the disc31, is a spring washer 36, considerably moreeffective than the washer 28, and tending to hold the sleeve and washer28 in close contact so that the co-operating notches and projec tionswill retain the sleeve releasably in either one oftwo positions 180apart. The

upper spring washer 36 is not necessary: where the proportions andadjustment of the parts are absolutely correct, but it is fineadjustment unnecessary.

Near its lower extremity, the sleeve 30 is provided with a spiral slot37 extending approximately half-way around the circumference of thesleeve. This spiral slot is adapted to receivea projection, such as apin 38 on one end of a lever 39, the latter being pivoted upon a pin 40,which may be mounted in a hole in the plate 10. In ractice, I form theplate 10 with two such oles 41, so that-the same parts may be utilizedfor right and left hand doors. The end of the lever 39 which is oppositethe end 38, is

shaped to fit in front of a shoulder on the roll-back 19 to prevent thatelement from moving in response to a rotational efi'ort putTu-ponthe-outside door handle. It will be obvious that rotation of the sleeve30 for 180 in an anti-clockwise direction from the I. Interposed .be-

the roll-back and permit the opening of the door from the outside. Ineither position the sleeve 30 and the lever 39 are held againstaccidental movement by the spring washer 28.

to claim all novelty inherent in my invention broadly, as well asspecifically. I claim as my invention:

1. In a lock for vehicle doors, a slidable latch bolt, 9. spring forthrowing said bolt to operative position, means for retracting saidbolt, a second means for retracting the .70. While I have shown anddescribed in conbolt including an oscillatable rod, and means .forpreventing the operation of said firstnamed means, including a sleevesurrounding said rod and rotatable thereon, a pivoted locking lever andan operative connection between said sleeve and lever.

2. In a lock for vehicle doors, a slidable latch bolt, a spring forthrowing said bolt to operative position, an outside door handleforretracting said bolt, a second means for retracting the boltincluding an oscillatable rod, a sleeve surrounding said rod, and

" means including a pivoted lever adapted to be operated by the rotationof said sleeve for preventing the actuation of said door handle. highlydesirablein\ practice, because of manufacturing variations, and asrendering i to operative position,,means for retracting 3. In a lock forvehicle doors, a slidable latch bolt, a spring for throwing said bolt'having a projection arranged to 00-0 crate with said cam for theactuation 0. said lever.

5. In a lock for vehicle doors, a casing plate formed with a troughtherein, an oscillatable latch operating rod mounted within said trough,a sleeve surrounding said rod and rotatable thereon, a locking leverpivo ted upon said casing plate, a spiral cam actuator on Said Sleeveengaging said lever,

and a Washer surrounding said rod adjacent .sleeve in a predeterminedposition.

6. Ina look, a rotatable rod, a sleeve surrounding said rod androtatable with respect thereto, locking means operatively connected withsaid sleeve, and a detent for said sleeve'comprising a spring washeralso surrounding the rod, said sleeve-and detent being provided withcomplementary projections and notches, and means for the rotation ofsaid washer. p 7.- In a lock for vehicle doors, a casing preventingplate formed with a trough therein, an oscillatable latch operating rodmounted within said trough, means for locking said latch,

a sleeve surrounding the said rod and rotatable thereon" to actuate saidlocking means, a: washer surrounding said rod adjacent one end of saidsleeve, and interengaglng means between said casing plate and washer toprevent rotation of the latter, said sleeve and washer having acomplementary projection and socket for releasably holding the sleeve ina predetermined position.

8. In a lock for vehicle doors, a slidable latch bolt, a spring forthrowing said bolt to operative position, means for retracting saidbolt, a further means for retracting said bolt including a verticaloscillatable crank, means for preventing the operation of saidfirst-named retracting means including an element mounted to oscillateabout the axis of oscillation of said crank, a piv: oted locking lever,and an operative connection between said lever and said element.

In testimony whereof, I afiix my signature.

WILLIAM F. HARRINGTON.

